Health Checks & Longevity

The biggest wins here aren't general checkups — they're knowing your key numbers (blood pressure, cholesterol, blood sugar) and getting the screenings proven to catch disease early, like colorectal cancer. Getting those is one of the smartest health moves you can make.

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The checks that matter

29 science-backed actions, grouped by where to start. Each is cited, evidence-graded, and safety-checked.

Start here · foundational

Book a general physical within 30 days

Call your primary care doctor (or find one) and schedule a checkup. Most insurance plans cover annual preventive visits at no cost under the ACA. Community health centers offer sliding-scale fees if cost is a barrier.

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Set an annual checkup reminder on your phone

The biggest barrier to preventive care is forgetting. Put a recurring reminder on your birthday to schedule your annual physical. Routine takes the guesswork out.

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Find a primary care doctor you trust

If you don't have one, invest time in finding a doctor who listens and answers questions. A good relationship with your PCP is one of the strongest foundations for preventive care.

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Write down your family's health history

Note the key conditions in your family (heart disease, diabetes, cancer, mental illness, and at what age), plus your own past surgeries, current medications, and allergies. Have this ready for your appointment.

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Get your key health numbers checked

Ask your doctor to check blood pressure, cholesterol, and fasting glucose, the strongest predictors of heart disease and diabetes. A single blood panel reveals all three.

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Ask about age-appropriate cancer screenings

Colon cancer screening starts at 45, mammograms typically at 40 (check current guidelines), skin checks annually if you have risk factors. Early detection significantly improves outcomes.

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Bring your medication list to appointments

Write down everything you take, including OTC, vitamins, and supplements. Your doctor needs this to check for interactions and adjust dosages based on your labs.

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Book your next checkup before you leave

The biggest drop-off in preventive care happens between visits. Booking the next appointment before you leave removes the mental friction that causes delays of months or years.

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Write down symptoms you've been ignoring

Persistent fatigue, occasional chest tightness, changes in digestion, unexplained weight changes, many people normalize these. What feels "normal" may be clinically significant.

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Discuss your risk factors with your doctor

Based on your age, family history, and lifestyle, your doctor can recommend specific screenings. A 5-minute conversation about family health history shapes a targeted prevention plan.

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Keep a personal health record

Track your key metrics (blood pressure, cholesterol, weight, blood sugar) in a simple spreadsheet after each visit. Makes spotting trends easy and gives any new doctor your full history at a glance.

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Don't skip dental checkups

Gum disease has been associated with increased cardiovascular risk in observational studies (causal link still debated). Dental cleanings twice a year are an easy, evidence-based habit.

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Get baseline numbers you can track over time

A baseline EKG, resting heart rate, blood pressure trend, and full blood panel give your doctor something to compare against if issues come up later. Especially valuable in your 30s-40s.

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Schedule annual vision and hearing screenings

Eye exams can detect diabetes, hypertension, and neurological conditions before symptoms. Hearing loss after 50 is linked to accelerated cognitive decline. Both often overlooked, ask specifically.

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Look into more in-depth health tests

Coronary calcium scoring, advanced lipid panels, or comprehensive metabolic screening can detect disease early. Talk to your doctor about whether deeper testing makes sense for your age and risk profile.

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Go deeper · advanced

Ask for an ApoB test, not just LDL Core

ApoB counts every artery-clogging particle in one number, giving a fuller cholesterol picture than standard LDL. If you're already getting a lipid panel, ask your doctor whether adding ApoB makes sense for you.

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Before you start: It's a one-time question, not something to track repeatedly. A normal LDL is still reassuring. Your doctor interprets it in the context of your overall health.

Source: Sniderman 2011 — Circ Cardiovasc Qual Outcomes

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Measure your Lp(a) once in your life Core

Lp(a) is a mostly-genetic cholesterol particle that a standard panel misses, and roughly 1 in 5 people carry it at higher levels. Because it's stable for life, one simple blood test is usually enough.

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Before you start: You never need to recheck it. Review any result with your doctor; a high number isn't a verdict (it makes managing your other risk factors even more worthwhile). Don't act on it by starting any supplement or aspirin on your own.

Source: Kronenberg 2022 — Eur Heart J

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Ask if a coronary calcium (CAC) scan fits you Core

A low-dose CT counts calcified plaque in your heart arteries and helps personalize prevention when your statin decision is on the fence, most useful for adults 40-75 at borderline or intermediate risk. Ask your doctor whether it fits you.

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Before you start: Your doctor weighs the small radiation dose and rules out reasons to avoid it (like pregnancy); don't pursue imaging on your own. A score of zero is common and reassuring. Bring any result to your clinician rather than acting on it yourself; don't start, stop, or skip a statin based on the number alone.

Source: Polonsky 2010 — JAMA (MESA)

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Consider adding hs-CRP to your next labs Core

High-sensitivity CRP can flag elevated cardiovascular risk that standard lipids miss, with a predictive weight roughly comparable to blood pressure or cholesterol. Have your doctor order and interpret it with your next labs.

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Before you start: The number is easily skewed by a recent cold, infection, injury, intense exercise, or pregnancy, so a single reading isn't meaningful and shouldn't be acted on alone or rechecked compulsively. Don't start NSAIDs or supplements based on it, and a normal result doesn't rule out heart disease.

Source: Kaptoge 2010 — Lancet (ERFC)

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Check your Omega-3 Index Emerging

This red-blood-cell test shows your long-term omega-3 status rather than just what you ate last week, telling you whether your fish or omega-3 intake is actually landing. A low result is common and easily addressed with ordinary food like fatty fish.

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Before you start: It's one input among many, not a verdict. Don't take high-dose fish oil on your own to chase the number; talk to your doctor first if you take blood thinners, have a heart-rhythm condition, or have surgery coming up.

Source: Harris 2018 — J Clin Lipidol

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Ask about iron levels if hemochromatosis runs in your family Core

Hereditary hemochromatosis is common in people of Northern European descent and easily treated when caught early. If you have a family history or unexplained fatigue or joint pain, ask your doctor to add ferritin and transferrin saturation to routine bloodwork.

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Before you start: A single borderline result is often benign, so don't self-diagnose or recheck repeatedly; bring any result to your clinician for interpretation.

Source: Adams 2005 — N Engl J Med (HEIRS)

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Ask about cystatin C if a kidney result is borderline Core

Standard creatinine-based eGFR can be thrown off by muscle mass, so a cystatin C eGFR sometimes clarifies a borderline kidney number, mainly relevant for very muscular people or before a medical decision. Raise it as an optional question with your doctor.

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Before you start: For most people, one normal result is reassuring; your doctor decides whether a second test is warranted. More tests aren't automatically better.

Source: Shlipak 2013 — N Engl J Med

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Start colorectal screening at 45 Core

In 2021 the USPSTF lowered the recommended starting age for average-risk colorectal screening from 50 to 45 because early-onset cases are rising. If you're 45-49 and haven't started, schedule it with your doctor; an at-home stool test is an easy, non-invasive first option.

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Before you start: It's a routine step for everyone in this age band, not a sign anything is wrong, and most results are normal.

Source: USPSTF 2021 — JAMA

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Do a yearly at-home FIT stool test between colonoscopies Core

A fecal immunochemical test (FIT) is a simple, no-prep, mail-in test your doctor may recommend between colonoscopies, a validated way to catch most colorectal cancers early. Make it a routine once-a-year step.

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Before you start: A positive result is common and usually not cancer; it just means it's time to schedule a colonoscopy for a closer look. Nothing to dwell on in between.

Source: Lee 2014 — Ann Intern Med

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Confirm a high BP reading with a week of home monitoring Core

Office blood pressure can read misleadingly high or low, so before accepting or rejecting a diagnosis, take validated upper-arm readings twice daily for one week to get your true average and bring it to your clinician.

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Before you start: Individual readings naturally vary; don't react to any single number, only the week's average matters. This is a one-week check, not ongoing daily monitoring. Don't wait to average if a reading is 180/120 or higher, or if you have chest pain, shortness of breath, a sudden severe headache, vision changes, or weakness; seek emergency care now. If you're pregnant or already on BP medication, contact your doctor rather than self-monitoring.

Source: USPSTF 2021 — JAMA

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Get a one-time hepatitis C test Core

Hepatitis C can stay silent for decades while it quietly scars the liver, and it's now curable. The USPSTF recommends every adult 18-79 get screened at least once, regardless of risk factors.

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Before you start: It's a routine one-time blood test everyone gets, and a positive result is treatable and good to catch early.

Source: USPSTF 2020 — JAMA

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Ask about a baseline bone-density (DEXA) scan if you have risk factors Core

DEXA is a quick, low-radiation scan that gives you and your doctor a starting point on bone health. Women 65+ should be screened; if you're postmenopausal and younger, or have risk factors like prior fracture or steroid use, ask whether a baseline scan makes sense for you.

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Before you start: Most results are reassuring, and any concerns are best worked through with a clinician. Tell your provider if you are or might be pregnant, since imaging is usually deferred then.

Source: USPSTF 2025 — JAMA

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Ask about annual lung CT if you have a heavy smoking history Core

A low-dose lung CT can catch lung cancer earlier, when it's more treatable. It's a recommended option for people roughly 50-80 with a 20 pack-year history who currently smoke or quit within the last 15 years.

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Before you start: Being eligible doesn't mean anything is wrong, and most scans are normal. Some scans find harmless spots that need a follow-up look, so talk to your doctor about whether it's right for you rather than self-referring.

Source: USPSTF 2021 — JAMA

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Get a baseline hearing test in your 50s Core

Untreated hearing loss is linked to higher dementia risk, and treating it is one of several modifiable factors, so a baseline audiogram lets you use hearing aids and protection sooner. Take it once and revisit only if needed.

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Before you start: It's a routine check, not a threat to dwell on between appointments.

Source: Livingston 2020 — Lancet

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Core = strong evidence (trials / large studies) · Emerging = promising, earlier evidence. Some actions are screenings or tests to discuss with your doctor — not medical advice.

How we evidence-grade and safety-screen every action →

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